Beacon Definition
=================

YAML configuration file that defines this beacon can be found at: https://github.com/oresat/oresat-configs/blob/master/oresat_configs/oresat1/beacon.yaml

AX.25 Header
------------

+------------------+-----------------------------------+-----------+-----------------------------------+-----------+---------+-----+
|                  | Dest Callsign                     | Dest SSID | Src Callsign                      | Src SSID  | Control | PID |
+==================+=====+=====+=====+=====+=====+=====+===========+=====+=====+=====+=====+=====+=====+===========+=========+=====+
| Value            | "S" | "P" | "A" | "C" | "E" | " " | 60        | "K" | "J" | "7" | "S" | "A" | "T" | F7        | 03      | F0  |
+------------------+-----+-----+-----+-----+-----+-----+-----------+-----+-----+-----+-----+-----+-----+-----------+---------+-----+
| Hex              | 53  | 50  | 41  | 43  | 45  | 20  | 60        | 4B  | 4A  | 37  | 53  | 41  | 54  | F7        | 03      | F0  |
+------------------+-----+-----+-----+-----+-----+-----+-----------+-----+-----+-----+-----+-----+-----+-----------+---------+-----+
| Hex (bitshifted) | A6  | A0  | 82  | 86  | 8A  | 40  | 60        | 96  | 94  | 6E  | A6  | 82  | A8  | F7        | 03      | F0  |
+------------------+-----+-----+-----+-----+-----+-----+-----------+-----+-----+-----+-----+-----+-----+-----------+---------+-----+
| Offset           | 0   | 1   | 2   | 3   | 4   | 5   | 6         | 7   | 8   | 9   | 10  | 11  | 12  | 13        | 14      | 15  |
+------------------+-----+-----+-----+-----+-----+-----+-----------+-----+-----+-----+-----+-----+-----+-----------+---------+-----+

Total header length: 16 octets

Packet
------

.. csv-table::
   :header: "Offset", "Card", "Name", "Unit", "Data Type", "Size", "Description"

   "0", "c3", "ax25_header", "", "octet_str", "16", "
   ax.25 packet header (see above)
   "
   "16", "c3", "beacon_start_chars", "", "str", "3", "
   the aprs start characters
   : {{z
   "
   "19", "c3", "satellite_id", "", "uint8", "1", "
   the unique oresat satellite id
   : 3
   
   
   Value Descriptions:
   
   - 1: oresat0
   
   - 2: oresat0_5
   
   - 3: oresat1
   "
   "20", "c3", "beacon_revision", "", "uint8", "1", "
   the beacon revision number
   : 0
   "
   "21", "c3", "crc32", "", "uint32", "4", "packet checksum"

Total packet length: 25 octets